fluid used......

john_181

Hi Bill,

I was just chating with Brad White and he told me to ask Bill this question, which I did but I want to ask the wall too. I just removed an old Hoffman outdoor reset control which was not being used any longer and I had to cut the capillary tube leading thru the wall and I smelled something like "pine" and it dripped a few clear drops. What kind of fluid did they use back then?????

Thanks